How long will the smell of smoke linger?

[zac510]

There is a room in my house that has a faint smell of smoke in it. Sometimes you notice it, sometimes you don't. The odd thing is that nobody has smoked in the whole house for over 4 years and I'm not even sure whether the previous tenant was a smoker.

The room is regularly aired out, at least in the warmer months anyway.

Could the smell linger for this long?

What should I do to try and get rid of the smell?

Thanks!

[jefword]

Could this be coming from next door or are you detached. Even so it could still get in through vents or gaps.

[Simpo Two]

Haunted I'd say...

Redecorating should fix it.

[zac510]

jefword said:

Could this be coming from next door or are you detached. Even so it could still get in through vents or gaps.

It's a typical late 1800s London mid-terrace. The elderly neighbour does smoke so I suppose it could come from next door.